DS2781G+ Maxim Integrated Products, DS2781G+ Datasheet - Page 4

• Manufacturer Part Number: DS2781G+
• Description: IC FUEL GAUGE STND ALONE 10-TDFN
• Manufacturer: Maxim Integrated Products

Specifications of DS2781G+

• Function: Fuel, Gas Gauge/Monitor
• Battery Type: Lithium-Ion (Li-Ion), Lithium-Polymer (Li-Pol)
• Voltage - Supply: 2.5 V ~ 10 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 10-TDFN Exposed Pad
• Operating Supply Voltage: 2.5 V to 10 V
• Supply Current: 70 uA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Charge Safety Timers: No
• Mounting Style: SMD/SMT
• Temperature Monitoring: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

EEPROM RELIABILITY SPECIFICATION
(V
Note 1: All voltages are referenced to V
Note 2: Factory calibrated accuracy. Higher accuracy can be achieved by in-system calibration by the user.
Note 3: Accumulation Bias register set to 00h. Current Offset Bias register set to 00h. NBEN bit = 0.
Note 4: Parameters guaranteed by design.
Note 5: Internal voltage regulator active.
PIN DESCRIPTION
EEPROM Copy Time
EEPROM Copy Endurance
TSSOP
DD
—
—
1
2
3
4
5
6
7
8
= 2.5V to 10V, T
PARAMETER
PIN
TDFN-EP
2, 3
EP
10
1
4
5
6
7
8
9
A
= -20°C to +70°C, unless otherwise noted. Typical values are at T
NAME
OVD
SNS
N.C.
PIO
V
V
DQ
VB
V
EP
DD
SS
IN
SYMBOL
Internal Supply. Bypass to V
Device Ground. Connect directly to the negative terminal of the cell stack.
Connect the sense resistor between V
Voltage Sense Input. The voltage of the battery pack is monitored through
this input pin with respect to the V
Power-Supply Input. Connect to the positive terminal of the battery pack
through a decoupling network.
Data Input/Output. 1-Wire data line. Open-drain output driver. Connect this
pin to the DATA terminal of the battery pack. This pin has a weak internal
pulldown (I
1-Wire Bus Speed Control. Input logic level selects the speed of the 1-Wire
bus. Logic 1 selects overdrive (OVD) and logic 0 selects standard timing
(STD). On a multidrop bus, all devices must operate at the same speed.
No Connection
Sense Resistor Connection. Connect to the negative terminal of the battery
pack. Connect the sense resistor between V
Programmable I/O Pin. Can be configured as input or output to monitor or
control user-defined external circuitry. Output driver is open drain. This pin
has a weak internal pulldown (I
Exposed Pad. Connect to V
N
t
EEC
SS
EEC
.
T
PD
A
) for sensing pack disconnection from host or charger.
= +50°C
4 of 31
CONDITIONS
SS
SS
PD
or leave floating.
with a 0.1µF capacitor.
).
FUNCTION
SS
pin.
SS
50,000
MIN
and SNS.
SS
and SNS.
TYP
A
= +25°C.)
MAX
15
UNITS
cycles
ms